In the 2 years that I have known Amy, she has had 7 different jobs and changed her major in school 5 times. Amy is 34 and pursuing her Masters , I am 32 and have a professional job with NYS. I have my MBA and am very stable. I feel that I am the most stable thing that she has had in her 34 years. I just don't know.....
I know I could have done things differently.
LOL!!!! Can't you see? This is NOT about you, this is about HER. And you, my friend, are a sucker for that "White Knight" syndrome. You felt you could "save" her - NOT GOOD.
You need a woman who doesn't NEED saving, who has her own act together and could maybe even save YOU in a pinch. Not one whose first response to depressing life events (grandfather stuff) is to go out and have an affair (yes, you heard me right. Sorry to break it to you, but 99% of the time when a man says it, and 95% of the time when a woman says it, "I love you but I'm not in love with you" means "I have the hots for someone else". I'd lay odds she did something inappropriate on one of those nights out, or at least has been flirting with some other guy.)
Stay dark. Look carefully at your own issues - what attracted you to such an unstable person in the first place?